| OF | occipitofrontal; open field [test]; optical fundus; orbitofrontal; osmotic fragility; osteitis fibro... |
|---|---|
| O/F | oxidation-fermentation |
| OFBM | oxidation-fermentation basal medium |
| DF | decapacitation factor; decontamination factor; deferoxamine; deficiency factor; defined flora [anima... |
| GRF | gastrin-releasing factor; genetically related macrophage factor; gonadotropin-releasing factor; grow... |